//工具包
//校验手机号码的功能 （函数 
export const validatephonenumber = (value) => {
  let reg =
    /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/;
  return reg.test(value);
};
//获取滚动条当前的位置 
export function getScrollTop() {
  var scrollTop = 0;
  if(document.documentElement && document.documentElement.scrollTop) {
      scrollTop = document.documentElement.scrollTop;
  } else if(document.body) {
      scrollTop = document.body.scrollTop;
  }
  return scrollTop;
}

//获取当前可视范围的高度 
export function getClientHeight() {
  var clientHeight = 0;
  if(document.body.clientHeight && document.documentElement.clientHeight) {
      clientHeight = Math.min(document.body.clientHeight, document.documentElement.clientHeight);
  } else {
      clientHeight = Math.max(document.body.clientHeight, document.documentElement.clientHeight);
  }
  return clientHeight;
}

//获取文档完整的高度 
export function getScrollHeight() {
  return Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
}
     